The 120 Air Training Group (renamed Air Training Wing in 1976) was created at Kalamata in 1970 with Lockheed T-33A Shooting Stars, in the following year the Cessna T-37C Tweet were transferred here. In 1985 additional T-37Bs were added to the fleet. The T-37B/Cs remained in service until 2002, having been replaced by the Raytheon T-6A Texan II.
In 1976 the T-33As were replaced with the North American T-2E Buckeye. 40 new T-2Es were delivered and for use as a source of spares five ex USN T-2Cs were received with another seven in July 2010 (now in outside storage).